#include <muduo/net/TcpServer.h>
#include <muduo/net/EventLoop.h>
#include <muduo/net/TcpConnection.h>
#include <muduo/net/Buffer.h>
#include <iostream>
#include <string>
#include <unordered_map>

class DictServer
{
public:
    DictServer(int port) : _server(&_baseloop,
        muduo::net::InetAddress("0.0.0.0" , port),
        "DictServer" , muduo::net::TcpServer::kReusePort
    )
    {
        //设置连接时间（建立、关闭）的回调
        _server.setConnectionCallback(std::bind(&DictServer::onConnection ,this , std::placeholders::_1));
        //设置连接消息的回调
        _server.setMessageCallback(std::bind(&DictServer::onMessage , this , 
        std::placeholders::_1 , std::placeholders::_2 , std::placeholders::_3));
    }

    void start()
    {
        _server.start();//先开始监听
        _baseloop.loop();//开始死循环时间监控
    }
private:

    void onConnection(const muduo::net::TcpConnectionPtr & conn)
    {
        if(conn->connected())
        {
            std::cout << "连接建立\n";
        }
        else
        {
            std::cout << "连接断开\n";
        }
    }
    void onMessage(const muduo::net::TcpConnectionPtr &conn , muduo::net::Buffer *buf , muduo::Timestamp)
    {
        static std::unordered_map<std::string , std::string> dict_map = {
            {"hello",  "你好"},
            {"world",  "世界"},
            {"bite",  "比特"}
        };
        std::string msg = buf->retrieveAllAsString();
        std::string res;
        auto it = dict_map.find(msg);
        if(it != dict_map.end())
        {
            res = it->second;
        }
        else
        {
            res = "未知的单词";
        }
        conn->send(res);
    }
    muduo::net::EventLoop _baseloop;
    muduo::net::TcpServer _server;
};

int main()
{
    DictServer server(9090);
    server.start();
    return 0;
}